I have taken both since 2017, following a mini-stroke and as far as I can tell, no side effects whatsoever.
I don't know why they have a bad reputation but three people (all non-medical but who 'enjoyed'ill-heath) told me not to take them because they caused stress, anxiety and cramp.
I mentioned it to the nurse who was dealing with me at the time and she gave me a severe talking-,to, said I would be at higher risk of another stroke if I didn't take them, advised me to proceed and said if I did have any problems to talk to the doctor who could try a different type.
Haven't suffered any side effects.